1 Archived news for pre-2.0.0 Zebra. The Zebra source code was forked
2 after release 1.3.16: development on the 1.3.x branch continuing as
3 documented in the post-1.3.16 entries in this file. In the mean time,
4 the other branch was initially known as the 1.4.x branch and
5 eventually became the 2.0.x branch. Release news subsequent to 2.0.0
6 is in the NEWS file. During the period between the fork at 1.3.16 and
7 the formal release of 2.0.0, some but not all of the subsequent 1.3.x
8 changes were also made in the 1.4.x (= 2.0.x) branch, so some but not
9 all of the post-1.3.16 changes listed in this file also apply to
10 2.0.0. One day we'll annotate which do and don't apply.
14 Update code to use new YAZ log functions/defines.
18 Updated to use YLOG_-defines for YAZ, rather than the obsolte LOG-defines.
22 Fixed several compilation warnings. (gcc 4.1.2, -O3 -g -Wall)
24 Fixed bug #710: Duplicate keys for CDATA in xelm/melm rules.
28 Fixed bug #529: multiple simultaneous updates by extended services trashes
33 Fixed bug #47: Commit needs to check for roll-back.
35 Fixed bug #672: Trailing characters in password are ignored
37 Added extra presence check for tcl.h, because some systems have
38 tclConfig.sh installed even though Tcl C headers are missing.
42 Optimized melm performance.
44 Do not use sync(2) during commit (but rely on sync'd individual files).
48 Updated Debian package to use sym links for zebraidx, zebrasrv.
50 Fixed bug in isamb (isam:b) regarding ISAM tree splitting.
52 Fixed problem with file locking during commit phase. This error was
57 Fixed bug #602: Any extra terms appended to a wordlist with a hitcount
58 of 0, gets incorrect term count
60 Fixed bug #597: Support null missing key for sort.
64 Fixed bug #465: dup fields in ISO2709 retrieval.
66 Another fix for X-Path indexing. The previous fix, unfortunately, indexed
71 Fix X-Path attribute indexing. Bug #431.
75 Fixed bug #415: Strange truncation behavior.
77 Added 'melm' directive to absyn format to simplify config files
78 for MARC-style databases. See tab/marc21.abs for an example.
80 Added support for special slement set _sysno_ which returns a
81 record ID for a record packed as a SUTRS record.
85 Documented authentication facility in Zebra. Added zebra.cfg directive
86 'passwd.c' which specifies user accounts file with encrypted passwords. The
87 directive 'passwd' specifies user accounts file with clear-text passwords.
88 The previous version of Zebra used plain/clear text depending on
89 configuration automatically. That caused upgrade trouble. Bug #356.
93 Depend on YAZ 2.0.18 or later in configure.
95 Fixed crash that could occur if ES update transaction failed.
97 Configure enables the use of the crypt API - if available.
99 Fixed bug #304: Fuzzy search regExpr-2 did not use proper error distance
102 Fixed bug #305: Scan now handles negative preferred-position-in-response.
104 Implemented the 'equivalent' directive for .chr-files.
106 --- 1.3.24 2005/02/09
108 For configure, support threading again. It was removed by mistake
111 Fixed bug #262: spaces in control fields in MARC returned.
113 Fixed bug #259: Second indicator lost in MARC records
115 --- 1.3.22 2005/01/23
117 Fixed bug #253: Setting group.database not honored
119 Fixed bug #252: Sort does not work.
121 Fixed bug #248: hit counts in combinatoric (and) searches in specific ..
123 --- 1.3.20 2005/01/17
125 Fixed bug #245: Time for getting records changes a lot based on record
128 Fixed bug #235: weird x-path results.
130 Avoid crash in ISAMB when isamb_pp_open gets ISAMB_POS = 0. In
131 this case EOF (no entries) is signalled. It fixes problem with
132 terms being deleted. See bug #109.
134 Fixed bug #169: Phrase term counts does not work. The bug exists in
137 Added mechanism to ignore leading articles when doing full-field indexing,
138 based on the character map files. See the manual for further discussion.
140 --- 1.3.18 2004/08/20
142 Fixed bug in record management. Releasing blocks could result in
145 Fixed bug in isam:b. A tree split could result in a lost item.
147 --- 1.3.17 2004/08/17
149 Add IDZebra.i to dist so that Perl extension builds again.
151 --- 1.3.16 2004/08/16
153 Added facility to make attibutes in grs.regx and grs.tcl filter using the
154 data command with argument -attribute <name> . The content of data is
155 the value of the attribute. This command should be used inside a
156 begin element , end element section.
158 Update zebra.nsi to NSIS 2.
160 Added a new 'cut' directive to charmaps (.chr files) which specifies that
161 only characters after the cutting char should be indexed.
163 Update Perl internals so that it matches the current Zebra API.
164 The recordGroup structure is no longer available. A group of resources
165 can still be referenced by setting groupName=>.. in various methods.
167 Maximum number of records to be sorted in a result set can be
168 specified by setting "sortmax". Default is 1000.
170 Allow use of string use attributes for regular attribute sets. The
171 name matches the name given in the attribute set file. All strings
172 starting with / are considered X-Path as usual.
174 Fixed bug in grs.regx. filter . 'end element' could pop off top tag
175 element for XML tree. It may only pop off if -record is given.
177 Added grs.danbib filter - for Danish Bibliographic Centre.
179 Rename CHANGELOG to NEWS.
181 For text filter, return only header if elementSetName=H . elementSetName=R
182 returns contents only. Other elementSetName returns both header+content.
184 Added test for charmap and rusmarc.
186 Added feature charmaps (.chr) so that characters may be specified in
189 Fixed problem with encoding directive for charmap(.chr) files.
191 Allow Remote insert/delete/replace/update with record, recordIdNumber
192 (sysno) and/or recordIdOpaque(user supplied record Id). If both
193 IDs are omitted internal record ID match is assumed (recordId: - in
196 --- 1.3.15 2004/01/15
198 Fix bug. X-Path attribute expressions with spaces in them now works.
200 Fix base address for MARC output.
202 --- 1.3.14 2003/11/29
204 Fix bug with shadow and result set handling.
206 Implement MARCXML to ISO2709 conversion.
208 --- 1.3.13 2003/09/26
210 Add missing examples for Windows install.
212 Fix bug in regx filter to make it "greedy" again. This bug appeared
217 --- 1.3.12 2003/09/08
219 Fix XML error handling. Stop XML parse immediately if XML parse error
220 occur (i.e. produce one error only).
222 Zebra ignores "unsupported use attribute" for individual databases
223 when search multiple databases (unless all databases fail).
225 New filter grs.marcxml which works like grs.marc but produces MARCXML.
227 Added support for database deletion. It is possible to create/drop
228 a database from zebraidx utility. Note: only for isam:b.
230 Write zebrasrv.pid to lockdir.
232 Bug fix: result sets were not recovered correctly. Had to
233 add ODR handle for zebra_search_RPN in order to make it work.
235 Fixed a bug in regx filters that didn't do anchors (^) correctly.
237 Fixed a bug in searches with X-Path searches sometimes giving "extra"
240 Zebra server checks for zebrasrv.pid and refuses to start if it is already
241 locked by another (running) zebrasrv.
243 Fixed a bug with text being chunked in pieces for the grs.xml filter.
245 --- 1.3.11 2003/04/25
247 xelm code updates. xelm works regardless state of 'xpath enable/disable'
248 Avoid -L/usr/lib since that is already default library path.
250 Allow multiple updates within one transaction.
252 Fixed a bug with >2GB files (overflow in integer expression).
254 --- 1.3.10 2003/04/01
256 Fix linker error for Perl module.
258 Fix bug in and operation which in some cases could result in "extra"
259 hits. Bug was introduced in 1.3.5.
261 Fix bug in handling of schema conversion when producing numeric tags.
267 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
271 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
272 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
273 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
275 livrank: another experimental ranking algorithm. Source in livcode.c.
276 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
278 Contributed by Pete Mallinson, University of Liverpool.
280 Advanced MARC indexing. See doc/marc_indexing.xml
281 Oleg Kolobov <oleg at lib.tpu.ru>
283 Perl API updates and fixes.
284 Peter Popovics <pop at technomat.hu>
286 Fixed 'zebraidx delete'.
288 Implemented 'zebraidx clean'.
290 64-bit offsets for register files on WIN32 (no 2 GB limit).
292 Fixed a few memory leaks WRT sorting.
296 Fixed error handling : error code was not properly returned.
298 Support Truncation 104 (CCL).
302 Added missing source files for perl extension.
306 Implemented xelm directive.
308 Updated for newer version of YAZ (introduction of string schema).
310 Directory examples/zthes now part of distribution (was missing
311 in previous release).
313 New .abs directive, systag, that control where to put retrieval
314 information. The directive takes two arguments: system tag, element name.
315 System tag is one of : rank, sysno, size.
319 Perl Filter and Perl API. By Peter Popovics.
321 For zebra.cfg, if no profilePath is specified, directory
322 (prefix)/share/idzebra/tab
325 Zebra Examples in examples . Zebra tests in test.
327 Bug fix: sort index was not properly modified on
328 record updates/deletes.
330 Fix handling of character entities for sgml filter.
332 Move data1 to Zebra (used to be part of YAZ).
336 Fix character encoding of scan response terms.
338 Fix character decoding of scan request terms.
340 Fix ESpec handling (requires YAZ 1.9.1)
342 Fix searches for complete fields.
346 When name zebra is used in a filename or directory 'idzebra' is used
347 instead to avoid confusion with GNU zebra (routing software).
349 Zebra server stops with a fatal error if config file cannot be read.
351 New config setting, followLinks, that controls whether update of files
352 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
353 By default symbolic links are followed.
355 Fix MARC transfer . MARC fields had wrong data for multiple fields.
357 XML record reader moved from YAZ to Zebra, to make YAZ less
358 dependant on external libraries.
360 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
361 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
362 on systems that doesn't offer iconv.
364 XML record reader supports external system entities.
368 New .abs-directive "xpath" that takes one argument: "enable"
369 or "disable" to enable and disable XPath -indexing. If no "xpath"
370 direcive is found in .abs-file , XPath-indexing is disabled to ensure
371 backwards compatibility. For missing .abs-files XPath-indexing is
372 enabled so that such records are searchable.
374 Zebra warns about missing .abs-file only once (for each type).
376 Fixed a bug in file update where already-inserted files could
381 Zebra license changed to GNU GPL.
383 XPath-like queries used when RPN string attributes are used, eg.
384 @attr 1=/portal/title sometitle
385 @attr 1=/portal/title[@xml:lang=da] danishtitle
386 @attr 1=/portal/title/@xml:lang da
387 @attr 1=//title sometitle
389 Zebra uses UTF-8 internally:
390 1) New setting "encoding" for zebra.cfg that specifies encoding for
391 OCTET terms in queries and record encoding for most transfer syntaxes
392 (except those that use International Strings, such as GRS-1).
393 2) The encoding of International strings is UTF-8 by default. It
394 may be changed by character set negotiation. If character set
395 negotiation is in effect and if records are selected for conversion
396 these'll be converted to the selected character set - thus overriding
397 the encoding setting in zebra.cfg.
398 3) New directive "encoding" in .abs-files. This specifies the external
399 character encoding for files indexed by zebra. However, if records
400 themselves have an XML header that specifies and encoding that'll be used
403 XML filter (-t grs.xml).
405 Multiple registers. New setting in resource 'root' that holds base
406 directory for register(s). A group a databases may be put in separate
407 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
411 Fixes for Digital Unix
413 Implemented hits per term using USR:SearchResult-1.
415 New Zebra API. Locking system re-implemented.
417 --- 1.1.stable 2002/02/20
419 Rank weight can be controlled with attribute type 9. Default
420 value is 34. Recommended values between 1-36.
424 Updated for YAZ version 1.8.
426 Added support for termsets - a result set of terms matching
427 a given query. For @attr 8=<set> creates termset named <set>.
429 Added support for raw retrieval. Element Set Name R forces the
430 text filter which returns the record in its original form.
432 Added numerical sort - triggered by structure=numeric (4=109).
434 Remote record import using Z39.50 Extended Services and Segments.
436 Fixed bug where updating a database with user-defined attributes
437 could corrupt the register (bad storeKeys).
439 Multi-threaded version.
441 Fixed bug regarding proximity.
443 Documentation updates.
445 Fixed bug in record retrieval module that occured on 64-bit OSF
450 Fixed bug in makefile for WIN32.
452 Fixed bug in configure script - used bash-specific features.
456 Added support for multiple records in one file for filter grs.sgml.
458 Changed record index structure. New layout is incompatible with
459 previous releases. Added setting "recordcompression" to control
460 compression of records. Possible values are "none" (no
461 compression) and bzip2 (compression using libbz2).
463 Added XML transfer syntax support for retrieval of structured records.
464 Schema in CompSpec is recognised in retrieval of structured records.
466 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
467 that fails, the filter reads the file <filt>.flt (regx style filter).
469 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
470 Zebra's configure script automatically attempts to locate Tcl. For
471 manual Tcl configuration use option --with-tclconfig=<path> to specify
472 where Tcl's library files are located.
474 Implemented "compression" of Dictionary and ISAM system. Dictionary
477 Added "tagsysno" directive to zebra.cfg to control under which tag the
478 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
481 Added "tagrank" as above.
483 Changed file naming scheme for register files from <name>.mf.<no> to
486 Implemented "position"-flag for register type (as defined in
487 default.idx). When set to zero no position (or seqence number) is
488 saved in register for each word occurrence, thus saving some register
491 Implemented database mapping. Using mapdb one can specify a database
492 to be mapped to one or more physical databases. Usage:
493 mapdb <fromdb> <todb> ..
495 Added SOIF-filter. Thanks to Peter Valkenburg.
497 For the regx-filter "end element -record" may trigger a mark-of-record
498 if outer level is reached.
500 Tag sets may be typed in the reference to it. From the .abs-file the
501 "tagset" directive takes a third optional integer type for the tag set
502 referenced. From a .tag-file the "include" directive takes a third
503 optional type as well. The old "type" directive in the tag set itself
504 is still recognized but acts as the default type for the tag set.
506 Zebra supports the specification of arbitrary attributes sets, schemas
507 and tag sets, because of the change in YAZ' OID management system.
509 Fixed bug in Sort that caused it NOT to use character mapping as it
512 Zebra now uses GNU configure to generate Makefile(s).
514 Added un-optimised support for left and left/right truncation attributes.
516 Added support for relational operators on text when using RPN queries.
518 Added support for sort specifications in RPN queries. Type 7 specifies
519 'sort' where value 1=ascending, value 2=descending. The use attribute
520 specifies the field criteria as usual. The term specifies priority
521 where 0=first, 1=second, ...
523 Changed the way use attributes are specified in the recordId
526 Maximum number of databases in one Zebra register increased.
528 New setting, databasePath, which specifies that first directory during
529 update traversal is the database name (instead of a fixed one).
531 New setting, explainDatabase, which specifies that databases are
534 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
536 Implemented EXPLAIN database maintenance. Zebra automatically
537 generate - and update CategoryList, TargetInfo, DatabaseInfo,
538 AttributeSetInfo and AttributeDetails records at this stage. The
539 records may be transferred as GRS-1, SUTRS or Explain.
541 Fixed register spec so that colon isn't treated as size separator
542 unless followed by [0-9+-] in order to allow DOS drive specifications.
544 Fixed two bugs in ISAMC system.
546 Changed the way Zebra keeps its maintenance information about attribute
547 sets, available attributes, etc.. Records in "SGML" notation using an
548 EXPLAIN schema is now used when appropriate.
550 Bug fix: Index didn't handle update/insert/delete of the same record
551 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
552 first occurence of a record is considered.
554 Most searches now return correct number of hits.
556 New modular ranking system. Interested programmers are encouraged to
557 inspect rank1.c and improve the algorithm.
559 Bug fix: Lock files weren't removed as they should on NT.
561 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
562 specify a "sort register". Refer to the gils sample records which refer
563 to index type "s" which is specified as "sort" in the default.idx file.
564 Each sort criteria can either be Ascending or Descending and at most
565 three sort elements can be specified.
567 Bug fix: Character mapping didn't work for text files.
571 Simple ranked searches now return correct number of hits.
573 The test option (-s) only makes a read-lock on the index as well
574 as using read-only operations anywhere.
576 Moved towards generic character mapping. Configuration file default.idx
577 specifies character map files for register types w, p, u, etc.
579 Implemented "begin variant" for the sgml.regx - filter.
581 Fixed a few memory leaks.
583 Added support for C++, headers uses extern "C" for public definitions.
585 Bug fix: The show records facility (-s) only displayed information for
586 the first record in a file (and not for every record in the file).
588 Added option "-f <n>" to limit the logging of record operations. After
589 <n> records has been processed no logging is performed (unless errors
592 Bug fix: the compressed ISAM system didn't handle update operations
595 Added setting, "maxResultSetSize", to hold the number of records to
596 save in a result set.
598 Bug fix: Complete phrase did't work for search operations.
600 Bug fix: temporary result sets weren't deleted.
602 Reduced disk space for saved keys (storeKeys = 1).
604 Added optional, physical ANY (key replication)
606 Implemented proximity operator in search.
608 Bug fix: the path name buffers used by file match traversal routines
609 have been extended to support long file names.
611 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
612 configuration file. The resulting register without "storeKeys" is about
613 half the size, and the memory used by zebraidx during phase 2 (merge) is
614 reduced to a minimum.
616 Reworked the way Regexp-2 queries with error tolerance are handled and
617 specified. The documentation has been updated accordingly.
619 Bug fix: Zebrasrv didn't search correctly when queries contained masking
620 characters. This bug was introduced in 1.0a8.
622 Zebrasrv now tag records with the proper database name.
624 New settings, memMax and keyTmpDir.
626 Changed name of setting lockDir (previously called lockPath) and
627 setTmpDir (previously called tempSetPath).
629 Generalized and changed record type specifications. In short, there are:
631 grs.sgml structured, "SGML-like" syntax
632 grs.regx.<filter> structured, Regular expression filter
633 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
634 is the name of an abstract syntax file.
635 Bug fix: Result sets weren't sorted in operations involving boolean
636 operations with "ranked" operands.
640 Added national character-handling subsystem.
644 Small modifications to input filters and profiles.
646 Added support for SOIF syntax (with private OID).
650 Fixed buffer-size problem in indexing.
652 Added compression to temporary files for updating.
654 Added phrase registers.
656 Added dynamic mapping of search attribute to multiple termlists (ANY).
658 Scan support in multiple databases/registers.
660 Configuration settings are case-insensitive and single dash (-)
661 characters are ignored in comparisons.
663 The index processing ignores empty files - warning given.
665 New option to zebraidx (-V) displays version information.
669 Fixed problem in file-update system.
671 Fixed problem in shadow system; register was sometimes corrupted after
676 Fixed problems in the ISAM subsystem. Caused difficulties when updating
679 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
680 the rank and record number.
682 Fixed bug in the isam subsystem - caused a malfunction when accessing
683 words which occurred more than 10000 times.
685 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
688 Server can now run under inetd. Use option -i, and -w <directory> to
689 set working directory to desired location.
691 New zebraidx command: clean - removes temporary shadow files.
693 Fixed bug in ISAM system. Occurred rarely during register updates.
695 Logging during index merge phase is improved. The remaining running
698 Temporary files generated by zebraidx are removed after each run.
700 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
701 when doing scan operations in dictionaries with European characters.
705 A whole slew of updates, to make the first publicized release. Get the doc
710 Memory-problems in ISAM fixed. More blocktypes added to the default setup
711 to increase performance on larger databases.
713 Various minor changes in data management system.
717 A couple of portability-problems resolved.
719 Changed some malloc() to xmalloc().